Lighting fixtures



Oct. 9, 1962 P. H. IRMISCHER LIGHTING FIXTURES Filed March 16, 1961mmvrm PA VA- H. IR/VI/SCHER av rates Unite My invention relates to newand useful improvements in lighting fixtures and more particularly theinvention relates to what is known as a tree or pole lamp wherein thereis provided an elongated standard secured in a vertical plane betweenthe floor and ceiling of a building or room by adjustable supportinglegs, the standard supporting a plurality of longitudinally spaced apartlight units.

In the present pole or tree lamp the location of the light units withrespect to the standard is limited. It is therefore one of the objectsof my invention to provide a lamp pole or tree wherein the lamp unitsmay be arranged in a number of positions with respect to the pole andwith respect to each other thereby resulting in what might properly betermed a universal lamp unit.

Another and equally important object of my invention is the novel andsimple construction for attaching the light unit support to the standardto accomplish universal adjustment of the light unit in a horizontalplane about the standard.

Yet another and equally important object of the invention is the simpleand novel arrangement of mounting a light diffuser upon the shell orshade of the light unit.

Other objects will appear hereinafter.

The invention consists in the novel combination and arrangement of partsto be hereinafter described and claimed.

The invention will be best understood by reference to the accompanyingdrawings showing the preferred form of construction, and in which:

FIG. 1 is a perspective view of the invention;

FIG. 2 is a sectional detailed View taken substantially on line 2-2 ofFIG. 1;

FIG. 3 is a fragmentary sectional detailed view taken substantially online 3-3 of FIG. 1;

FIG. 4 is a fragmentary sectional detailed view taken substantially online 4-4- of FIG. 1; and

FIG. 5 is a fragmentary sectional detailed view similar to FIG. 4 butshowing a modified form of construction.

The several objects of my invention are preferably accomplished by thepreferred form of construction shown in the accompanying drawing. Inthis connection a standard or pole is indicated at 10. This standard isin the form of a hollow elongated tube. At one end or both ends of thestandard there may be associated therewith the standard adjustable legs11 whereby the stand ard may be firmly supported between the floor andceiling of a room or between a room divider and a ceiling.

On the standard 10 at spaced intervals there is secured a bracket 12.This bracket 12 is secured to the standard by means of screws 13 and hasits intermediate longitudinal portion formed to provide a socket 14. Aswivel supporting arm 15 is provided which is formed of an elongatedmember twisted or curled to provide a deformed C or the like. One endportion 16 of the arm 15 is inserted in the socket 14 for swivelmovement relative to the bracket 12. In such end portion there is formeda circumferential groove 17. The socket has a punched portion whichprovides an inwardly extending protuberance 18 which engages in thegroove 17 to provide a connection between the swivel supporting arm 15and the bracket 12.

A light unit is indicated generally at 19 and includes a shade or globe20 secured to a handle 21 which may carry a socket (not shown) and theelectric bulb (not shown).

atenr The open end 22 of the shade 20 has an inturned lip 23. A bezel24- is formed of plastic or other equivalent material and is providedwith a turned peripheral edge 25 which snaps over the lip 23 so as toprovide a connection between the bezel 2 4 and the shade 20. This bezelis of translucent material and as such serves as a light diffuser.

The shade is adjustably connected to the outer end 26 of the arm 15 by asuitable fixture 27 which in the present form includes a ball 28connected to a nipple 29 by a collar 30. The arrangement permits theball 28 to have universal movement with the arm 15. The arm 15 beinghollow as is the standard 10 the circuit wires 3-1 for the light fixtureextend therethrough. As a part of this circuit connection there isincluded a finger switch 32. In FIG. 5 a modified form of constructionover that shown in FIG. 4 is illustrated. In this connection theperipheral edge 25 of the shade 20 forms an annular groove 33 whichreceives a circular bead 34 formed on the bezel 24.

From the foregoing description it will be apparent that I have provideda relatively simple form of construction for mounting the lamp unitsupporting arms to a standard of a lamp pole or tree whereby the lampunits may be adjusted circumferentially with respect to the pole andwith respect to each other without interfering with the adjustment ofthe lamp unit with respect to its associated supporting arm.

Such construction permits the lamp units to have a relatively largerange of adjustment with respect to each other and with respect to thestandard. It will be also apparent that I have provided a simpleconstruction for removably attaching a light diffuser bezel to the shadeof the lamp unit.

While I have illustrated and described the preferred form ofconstruction for carrying my invention into effect, this is capable ofvariation and modification without departing from the spirit of theinvention. I therefore, do not wish to be limited to the precise detailsof construction set forth, but desire to avail myself of such variationsand modifications as come within the scope of the appended claim.

Having thus described my invention, what I claim as new and desired toprotect by Letters Patent is:

A tree-type lighting fixture comprising (a) a standard,

(1)) a plurality of supporting brackets secured to the standard inspaced relation with respect to each other in the direction of the longaxis of the standard and each providing a socket,

(c) an arm for each of said brackets, said arm being curved to encirclethe standard and having one end portion bent from the plane of thecurved portion of the arm and seated in its respective socket, said armbeing movable for adjustment circumferentially with respect to saidstandard,

(0.) a lighting unit for each arm,

(e) and means connecting the lighting unit to its respective arm foradjustment relative thereto.

References Cited in the file of this patent UNITED STATES PATENTS1,280,095 Smith Sept. 24, 1918 1,806,773 Waters May 26, 1931 1,939,251Calissi Dec. 12, 1933 2,576,523 Lam NOV. 27, 1951 2,919,881 Eames Jan.5, 1960 FOREIGN PATENTS 615,300 Great Britain Jan. 4, 1949

